<!DOCTYPE html>
<html>
  <head>
    <meta charset="UTF-8">
    <title>Codeblitz</title>
    <style>
      body {
        margin: 0;
      }
      #main {
        width: 100vw;
        height: 100vh;
        margin: 0;
        padding: 0;
        overflow: hidden;
      }
      .container {
        height: calc(100% - 40px);
      }
    </style>
  </head>
  <body>
    <div id="main"></div>
  </body>
</html>
